Spray-cooling device



Dec. 9, 1930. L. T. MART 1,734,019

SPRAY COOLING DEVICE Filed Aug. 30, 1928 LL J; /5 Y /0 5 M T r 7 U H a/7 H W I INVENTOR. 16 7/1/40.

4 ATTORNEY Patented Dec. 9, 1930 UNITED STATES LEON T. MART, 01" KANSASCITY, MISSOURI SPRAY-COOLING Dawes v Application filed August 30, 1928.Serial No. 302,969.

M invention relates to devices for cooling hquids and more particularlyto means associated with a spray nozzle for enhancing contact of airwith the sprayed liquid to cool the same, comprising a tube concentricwith the nozzle and through which air currents are induced.

The principal object of the invention is to provide an improved andsimplified tube support which automatically self centers the tube withrelation to the spray nozzle to assure flow of induced air currentsthrough the spray.

In accomplishin this and other objects of the invention I ave providedimproved details of structure the preferred form of which is shown inthe accompanying drawings wherein:

Fig. 1 is a sectional perspective view of the preferred embodiment of myinvention as installed on a spray nozzle.

Fig. 2 is a plan view of the installation illustrated in Fig. 1.

Fig. 3 is a perspective view of the tube supporting bracket.

Fig. 4 is a perspective view of a preferred type of nozzle with whichthe device is associated.

Fig. 5 is an enlarged vertical sectional view through a portion of thenozzle and the supporting bracket illustrating the method of mountingthe bracket on the nozzle.

Referring in detail to the drawings:

1 designates the discharge pi from a hot liquid source and 2 the nozzleor dispersing the liquid in the form of conical spray as indicated bythe lines designated 3, the nozzle being preferabl provided with aperipherall extending ange 4 forming a shouldere seat 5 for mounting thetube supportin bracket 6. a he bracket 6 is preferably a metal castingand comprises a hoop or ring 7 connected to a concentric collar 8 byradially extending arms 9. The collar 8 is provided with a bore 10 of adiameter to fit snu ly over the body of the nozzle and has a at lowerside 11 which seats on the nozzle flange 4 as best shown in Fig. 5. Thusthe ring is supported concentrically with the nozzle and in fixedrelation thereto, to support the air delivery tube 12 in correctrelation to the discharged 160i the sheet may be lapped asat 17 andsecured by fastening devices such as bolts 18 to retain the tube inclamping relationfwith the hoop 7 of the bracket.

The tube '12 is open at both ends to atmosphere, and is of sufficientlength to provide proper flow of induced air currents through thesprayed fluid and is supported so that the periphery of the spray,thatis the path taken by the extreme exterior particles of liqbuid,slightly clear's'the upper edge of the tu e permitting unimpeded,discharge ofthe spraybut which in effect closes ofi the entire area ofthe tube to provide efficient flow of air'through'the'spray to cool thesame.

Thus it is important that the tube be correctly positioned verticallywith relation to the spray and that the spray is concentric with thetube.

The vertical adjustment is calculated by positioning of the groove 13 sothat when the tube is assembled on the supporting hoop, its upper edgeis properly positioned with the cone and since the hoop is supportedconcentrically with the nozzle by the radial arms projecting from thecollar 8, the tube is antomatically self centered when assembled onthenozzle.

In assembling the device the tube is clamped about the support so thatthe groove 13 receives the hoop 7 which retains the tube in verticalaxial alignment with the axis of the bore 10 of the collar 8. Thesupporting bracket is then positioned so that the collar slips over thebody of the nozzle and rests on the flange 4, the collar havingsufficient bearing with the nozzle to prevent lateral movement withrelation to the nozzle.

Thus it is apparent that when the tube is positioned on the nozzle, thetube is automatically self centered without further adjustment and thatthe tube is firmly supported without other anchoring means whereby flowof air through the tube is induced and the air contacts all portions ofthe spray cone substantially equally to cool the same.

lVhat I claim and desire to secure by Letters Patent is:

1. In combination with a spray nozzle and an air delivery tube having aninternal peripheral groove, a bracket for supporting the tube from thenozzle comprising a collar for receiving the nozzle, a hoop for-engagingin said groove of the tube and radial arms connecting the collar withthe hoop.

In combination a spray nozzle having a peripheral flange concentric withthe nozzle outlet, a collar supported on the flange, a hoop, armssupporting the hoop in concentric relation with the collar and an airdelivery tube supported by the hoop.

3. In combination a spray nozzle having a stop shoulder, an air deliverytube having a peripheral internal groove and a bracket for supportingthe tube concentrically of the nozzle comprising a collar engaging thestop shoulder on the nozzle, a hoop received in the groove in the tube,and arms connecting the collar with the hoop.

4. In a device of the character described, a nozzle having an annularshoulder, a bracket including a collar seatable on said shoulder, a hoopconcentric with the collar, and means rigidly connecting the hoop withthe collar, and a metal member having a groove and adapted to form atube having an inner groove receiving the hoop for centering the tube onthe nozzle.

In testimony whereof I allix my signature.

LEON T. MART.

